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114189

Sigma-Aldrich

Acetyl chloride

reagent grade, 98%, liquid

Synonym(s):

Acetic acid chloride, Acetic chloride, Ethanoyl chloride

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25 G
$37.52
500 G
$78.30
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$126.00

About This Item

Linear Formula:
CH3COCl
CAS Number:
Molecular Weight:
78.50
Beilstein/REAXYS Number:
605303
EC Number:
MDL number:
UNSPSC Code:
12352100
eCl@ss:
39050501
PubChem Substance ID:
NACRES:
NA.21

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$37.52

List Price$45.20Save 17%
Web-Only Promotion

In StockDetails


Shipping Frequency
Technical Service
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Product Name

Acetyl chloride, reagent grade, 98%

grade

reagent grade

Quality Level

vapor density

2.7 (vs air)

vapor pressure

11.69 psi ( 20 °C)
32.33 psi ( 55 °C)

assay

98%

form

liquid

autoignition temp.

1353 °F

expl. lim.

19 %

refractive index

n20/D 1.389 (lit.)

bp

52 °C (lit.)

mp

−112 °C (lit.)

density

1.104 g/mL at 25 °C (lit.)

functional group

acyl chloride

SMILES string

CC(Cl)=O

InChI

1S/C2H3ClO/c1-2(3)4/h1H3

InChI key

WETWJCDKMRHUPV-UHFFFAOYSA-N

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This Item
32012900990245623
assay

98%

assay

98%

assay

≥99.0% (T)

assay

95%

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

form

liquid

form

liquid

form

liquid

form

liquid

bp

52 °C (lit.)

bp

52 °C (lit.)

bp

52 °C (lit.)

bp

149 °C/1 mmHg (lit.)

mp

−112 °C (lit.)

mp

−112 °C (lit.)

mp

−112 °C (lit.)

mp

8-14 °C (lit.)

density

1.104 g/mL at 25 °C (lit.)

density

1.104 g/mL at 25 °C (lit.)

density

1.104 g/mL at 25 °C (lit.)

density

0.865 g/mL at 25 °C (lit.)

General description

Acetyl chloride is used as an acylating reagent for electrophilic acetylation of alkynes, alkenes, arenes, saturated alkanes, enolates, and organometallics.[1]

Acetyl chloride is a colorless acyl halide. On reaction with ammonia and alcohols, it affords acetamide and esters of acetic acid, respectively.[2] Structural parameters and rotational constants of its isotopic forms have been evaluated from the microwave spectral investigations.[3]

Application

Acetyl chloride has been used in the Lepage and Roy fatty acids analysis, and robotic fatty acid analysis.[4] It may be used for the qualitative in situ synthesis of hydrogen chloride.[5]

pictograms

FlameCorrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B

supp_hazards

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

41.0 °F - closed cup

flash_point_c

5 °C - closed cup


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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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